SOLUTION: Find f ’’(x) if f(x) = 9 x^3 - 1 x^4 + 9 and evaluate f ’’(1). (Keep 2 decimal places)

Algebra ->  Functions -> SOLUTION: Find f ’’(x) if f(x) = 9 x^3 - 1 x^4 + 9 and evaluate f ’’(1). (Keep 2 decimal places)       Log On


   

Question 1016408: Find f ’’(x) if
f(x) = 9 x^3 - 1 x^4 + 9
and evaluate f ’’(1). (Keep 2 decimal places)
Answer by Alan3354(69443) About Me  (Show Source):
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Find f ’’(x) if
f(x) = 9 x^3 - 1 x^4 + 9
and evaluate f ’’(1)
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f'(x) = 27x^2 - 4x^3
f"(x) = 54x - 12x^2
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f"(1) = 54 - 12 = 42